Window-sash construction



May 17,1927. 1,629,076

C. M. GIBSON WINDOW SASH CONSTRUCTION is ATTORNEY Nauw/fm 1,629,076 May 17,.1927- C, M. GIBSON WINDOW SASH CONSTRUCTION Filed April 23, 192e 2 sheds-sheet 2 INVENTOR Patented May 17, 1927.

i nirEn"` ai.' Grissom or". ROCHESTER', newv Youn;

wridwsasnl @ammenda Applicationmea-:apra 23, 192e. serieuY Nb. 104,079.

This invention relatesto a windowrsash construct-ion, and has-,- for itsobject tofprof,

vide a mechanism that periiiitsusing the= conventional itype of vertically .-slidingcoun--.

ter-balanced Ysash, whileatthe sainestime permitting 'the glass retaininggportionor frame to be swung inwardly so: asxto ipermit easy access tothe exterior-surface `of the glassfor cleaningi. i l

Anotherfob'fect' of the: invention is'toi afford a structure thatlcan be usedwithfout chang-l ing' the=usual window frame; andec'an: alsobe readilyincorporated. in standard typestofv windowi sash bya slight. reconstruction thereof; w

Still a further purpose of l the inventionI is tol provide J- a .stru'cture'.v havin-0;u comparatively few parts that canbe manufacturedl economically, andlwhichnlends itself to easy manipulation of a window.

To these and other ends, the invention consists in the construction and arrangement of parts that will appear from the following' description when read in conjunction with the accompanying drawings, the novel features being pointed out in the claims following the description.

In the drawings:

Figure l is a front elevation of a conventional window frame with upper and lower window sash built in accordance with a preferred embodiment of the invention;

Figure 2 is a horizontal sectional View on line 2 2 of Figure l.

` Figure 3 is a transverse vertical sectional view on line 3 3 of Figure 2;

Figure 4 is a view similar to Figure 3 with the glass retaining frames swung inwardly;

Figure 5 is a perspective view of one of the glass retaining frames partially broken away;

Figure 6 is a perspective view of the upper part of one of the vertically sliding support` ing members;

Figure 7 is an .enlarged sectional view taken through a pivot of one of the swinging glass retaining frames, and

Figure 8 is .a horizontal sectional view of one of the sliding supporting members.

Referring more particularly to the drawings in which like reference numerals refer to corresponding parts in the several views, l designa-tes a window frame of conventional type in whichare mounted upper and lower sliding sash as shown in Figure l. Each sash includes vertically movable slides or supporting.'members `2, which are preferably provid'edwith guide members 3, that are YliXe'dly .attached and move.: in Asuitablejvays ori'groo-vespformed in the ixe'dstops 4'or other stationary part of thev frame. i

,5 .designates a-glass retaining frame carry ing a, pane and pivoted at Ttothelower ends of the z slidable vsupporting members 2.A The pivotal connection 7 is preferablyibe-i. tween two metal stop plates 8 and-,19 which are iXedly attached '.to thegsupp'orting member` 2 and; glass retaining france5 respec-.z tively, as shown .in Figures 2, 7 andS. When; the frames are in normal or verticalposition,3 thestop =plate:9 thatiscarried by the; glassl retainingframe lies between the adjacent surfaceA of supporting member.I 2 and thel overlapping portion ofA the stopjr plate 8, as shownc-Vin-Figures V,7,V and;8. This arrange,- ment limits the outer movement of the glass retaining frame with relation to the slidable supporting members, and also acts to hold said parts in rigid, tight relationship when the frames are in normal, vertical position, as illustrated in Figures l and 3. Each of the slidable supporting membe 1s is provided with a locking device in the form of a catch 10, see Figure 6, that is pivoted between the plate 8 and the body of the supporting inember at the upper end thereof. Said catch 10 has an inclined portion l1 .and a nose 12 which cooperate with the upper end 13 of the strip 9 on the glass retaining frame.

By moving the glass retaining frame to vertical position anddrawing the catches l0 downwardly, the parts are held as illustrated in Figures l and 3 and can be operated like the conventional sliding sash. Vhen it isv desired to wash one or both windows, the catchesl() on the inside sash are first swung upwardly, and the sashswung inwardly-V as illustrated in Figure 4. The outside 'sash can then be lowered and swung inwardly after elevating its catches, occupying a position superposed on the lower sash, as shown in 'Figure 4.

In order to permit the outside sash to swing inwardly through the opening of the inside' sash, lthe glass retaining frame of the inside sash is made slightly wider than that of the outside sash. as illustrated in Figure 2. This affords an opening that permits the glass retaining fram-e of the outside sash to clear the sliding supporting members when swung through theopening of the inside sash. By pivoting the glass retaining frames at the lower ends of the sashes, it is possible to gain easy access to the exterior surface of the glass for cleaning, and there is the added advantage that none of the parts at any time project outside of the window frame. The structure is simple and easy to control, and affords an economical and practical arrangement which can be readily applied to old window frames and built in new windows at a reasonably low cost.

l/Vhile I have described the invention with reference to certain details of construction, it is not restricted to the precise form shown, and this application is intended to cover such modified arrangements or departures as may come within the spirit of the improvements or the scope of the following claims.

I claim:

l. A Window sash comprising vertically slidable supporting members` a glass retaining frame, stop plates secured to the frame and supporting members respectively, the adjacent stop plates being located in dit'- ferentl vertical planes and arranged to substantially overlap each other when the frame is in vertical position, the supporting members and frame being recessed under their respective stop plates to aiord openings which receive the cooperating and overlapping stop plates, and means pivotally connecting the stop plates at their lower ends to permit swinging movement of the frame about its lower portion.

2. A window sash comprising vertically slidable support-ing members, a glass retain` ing frame, stop plates secured to the frame and supporting` members respectively, the adjacent stop plates being located in diiierent vertical planes and arranged to substantially overlap one another when the frame-is in vertical position, the supporting members and frame being recessed under their respective stop plates to afford openings which receive the cooperating and overlapping Stop plates, means pivotally connecting the stop plates at their lower endsV to permit swinging movement of the frame about its lower portion as an axis, and catches pivoted between the supporting members and their stop plates and arranged to engage the cooperating stop plates on the glass retaining frame.

In witness whereof, I have hereunto signed my name.

CHARLES M. GIBSON. 

